自攻螺钉底孔标准
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德国自攻螺钉对照表
自攻螺钉 ? 六角头自钻自攻螺钉 Hexagon washer head drilling screws with tapping screw thread DIN EN ISO 15480 | 代替 DIN 7504 ? 六角凸缘头自钻自攻螺钉 Hexagon washer head drilling screws with tapping screws thread DIN EN ISO 15480 ? 十字槽盘头自钻自攻螺钉 Cross recessed pan head drilling screws with tapping screw thread DIN EN ISO 15481 ? 十字槽盘头自钻自攻螺钉 Cross recessed pan head drlling screws with tapping screw thread DI
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